<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/_mozilla/bluetooth/bluetooth-helpers.js"></script>
<script>
'use strict';
promise_test(t => {
    window.testRunner.setBluetoothMockDataSet(adapter_type.heart_rate);
    return window.navigator.bluetooth.requestDevice({
        filters: [{services: [heart_rate.name]}],
        optionalServices: [generic_access.name]
    })
    .then(device => device.gatt.connect())
    .then(gattServer => gattServer.getPrimaryService(generic_access.name))
    .then(service => service.getCharacteristic(device_name.name))
    .then(characteristic => characteristic.getDescriptor(number_of_digitals.name))
    .then(descriptor => {
        window.testRunner.setBluetoothMockDataSet(adapter_type.missing_descriptor_heart_rate);
        return promise_rejects_dom(t, 'InvalidStateError', descriptor.readValue());
    });
}, 'Descriptor gets removed. Reject with InvalidStateError.');
</script>
